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Author Topic:   383 ?
posted October 03, 2003 06:14 PM
What mods must be done to the block, crank, rods, etc. to put a 400 crank in a 350?

posted October 03, 2003 10:18 PM
have crank main journals ground down to 350 journal diameter.
grind inside of block (oil pan rails & cylinder walls) to clear rods.
replace pistons with a set with the correct pin height.
check/modify oil pan, scraper and windage tray to clear crank & rods.
balance assembly (most probably with 400 harmonic balancer.
I think that is the bare minimum that would be required.

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